51365056315 has 16 divisors (see below), whose sum is σ = 61793422560. Its totient is φ = 40988611840.

The previous prime is 51365056271. The next prime is 51365056321.

It is a happy number.

51365056315 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51365056315 - 2¹⁹ = 51364532027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3313212 + ... + 3328678.

It is an arithmetic number, because the mean of its divisors is an integer number (3862088910).

Almost surely, 2^51365056315 is an apocalyptic number.

51365056315 is a deficient number, since it is larger than the sum of its proper divisors (10428366245).

51365056315 is a wasteful number, since it uses less digits than its factorization.

51365056315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17102.

The product of its (nonzero) digits is 202500, while the sum is 40.

It can be divided in two parts, 513650 and 56315, that added together give a palindrome (569965).

The spelling of 51365056315 in words is "fifty-one billion, three hundred sixty-five million, fifty-six thousand, three hundred fifteen".